APT3100 Smart Pressure Transmitter
Operation Manual M3100-E01B
26 DUON System Co., Ltd.
cable that is suitable like that temperature.
(4) You have to use suitable wire, cable in environment like oil, solvent, toxic gas or liquid.
(5) Terminal process of lead line must use to not soldered terminal lug. Recommend isolating lead
end terminal using contract tube.
4.7.3 Connections of External Wiring to Transmitter Terminal
Box
Wiring method is following this.
▲
(1) Open the housing cover indicated "FIELD TERMINAL". In explosion environment when circuit
is powered on, don't open the covers.
▲
(2) Connect the power supply in the terminal indicated "+PWR"(left terminal) and "-" power
supply in the central terminal. Don't connect "+" power supply in "+" terminal of the point
indicated "TEST". It will be damage to test diode used to connecting TEST terminal.
(3) Seal and close the non-using Conduit Connection Part for severe humidity and explosion on
the terminal box of housing.
(4) Transmitter power is supplied to Signal Wiring. So, don't install near to Signal Wiring with
Power Wiring or near to Power Apparatus. In case of ground signal, ground the signal loop's
one side and other side is not grounded. Promote to ground "-" side of power.
(5) For the better adjustment completely turn Screw terminal.
(6) Again close the transmitter cover. Specially in case of using in explosion area, you must to
satisfy requirement about explosion.
[Note]
Don't supply high voltage (AC power) in transmitter leads. It can be caused damages to
transmitter.
(7) You have to connect 250~600 W Loop Resistor in Current Loop(between Power Supply and
Transmitter) for HART Communication HART. Following Figure 4-2 about conection of Current
Loop.
+
-
COMM
TEST
COMM
TEST
[Figure 4-2 Connection with Terminal Board of Transmitter
